Mouse over effekt

Dette script er det bedste jeg har set - det er nemmere at give koden en forklare. Jeg har sat lidt forklaring ind i kommentarerne:

<HTML>
<HEAD>
    <TITLE>lyd ved mouseover og click</TITLE>
<!-- Jungle.wav er lydfilen - Image3.gif er knappen -->
<META NAME=\"Generator\" CONTENT=\"Stone\'s WebWriter 3\">
<script LANGUAGE=\"JavaScript\">
<!--

var aySound = new Array();
//  preloader lydfil
aySound[0] = \"Jungle.wav\";

document.write(\'<BGSOUND ID=\"auIEContainer\">\')
IE = (navigator.appVersion.indexOf(\"MSIE\")!=-1 && document.all)? 1:0;
NS = (navigator.appName==\"Netscape\" && navigator.plugins[\"LiveAudio\"])? 1:0;
ver4 = IE||NS? 1:0;
onload=auPreload;

function auPreload() {
if (!ver4) return;
if (NS) auEmb = new Layer(0,window);
else {
Str = \"<DIV ID=\'auEmb\' STYLE=\'position:absolute;\'></DIV>\";
document.body.insertAdjacentHTML(\"BeforeEnd\",Str);
}
var Str = \'\';
for (i=0;i<aySound.length;i++)
Str += \"<EMBED SRC=\'\"+aySound[i]+\"\' AUTOSTART=\'FALSE\' HIDDEN=\'TRUE\'>\"
if (IE) auEmb.innerHTML = Str;
else {
auEmb.document.open();
auEmb.document.write(Str);
auEmb.document.close();
}
auCon = IE? document.all.auIEContainer:auEmb;
auCon.control = auCtrl;
}
function auCtrl(whSound,play) {
if (IE) this.src = play? aySound[whSound]:\'\';
else eval(\"this.document.embeds[whSound].\" + (play? \"play()\":\"stop()\"))
}
function playSound(whSound) { if (window.auCon) auCon.control(whSound,true); }
function stopSound(whSound) { if (window.auCon) auCon.control(whSound,false); }
//-->
</script>

</HEAD>
<BODY>
<!-- Man kan nøjes med enten onClick eller onMouseOver -->
<A HREF=\"din_side.html\" onClick=\"playSound(0)\" onMouseOver=\"playSound(0)\" onMouseOut=\"stopSound(0)\"><IMG SRC=\"Image3.gif\" BORDER=\"0\" WIDTH=\"605\" HEIGHT=\"431\" ALIGN=\"bottom\" ALT=\"Min Knap\"></A>
<button type=\"button\" name=\"Tag billede\" onClick=\"playSound(0), location.href=\'mouseover.htm\'\" onMouseOver=\"playSound(0)\" value=\'\' > Tag billede </button>
<INPUT TYPE=\"image\" SIZE=\"10\" SRC=\"images_3.gif\">
</BODY>
</HTML>